I must admit that just by eye I can often see the quality of workmanship & use of tools in manufacture in many items,both new & old.

It occurs with copy weapons in India & Nepal as well.

The old adage, "OFTEN COPIED BUT NEVER DUPLICATED" springs to mind.

Spiral

Salaams Spiral ~ I was trying to think how to say copied by hand are always individual ... but you beat me to it with that excellent saying!! Shukran. Its a bit like making Rolls Royces !
Regards,
Ibrahiim al Balooshi.